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Intel
Intel Core Ultra 7 265K Arrow Lake 20-Core (8P+12E) LGA 1851 125W BX80768265K desktop processor
20-core Arrow Lake desktop processor with 3 nm manufacturing, up to 5.5 GHz turbo, 30 MB L3 cache and DDR5-6400 support
- Processors TypeDesktop
- NameCore Ultra 7 265K
- CPU Socket TypeLGA 1851
- Core NameArrow Lake
- # of Cores20-Core (8P+12E)
- # of Threads20-Threads
- Turbo speeds up to 5.5 GHz for responsive single-thread performance
- 20 cores split into 8 performance and 12 efficient cores handle heavy multitasking
- 30 MB L3 plus 36 MB L2 cache keep data close to the cores
- DDR5 6400 MT/s dual-channel support feeds memory bandwidth to demanding workloads
- 125 W base power with 250 W max turbo fits standard desktop cooling solutions
LGA 1851 Desktop Processor For New Builds
This Intel Core Ultra 7 265K fits the LGA 1851 socket and brings 20 cores with 20 threads. It runs performance cores at 3.9 GHz base and efficient cores at 3.3 GHz base. Maximum turbo reaches 5.5 GHz on the best core. The 3nm Arrow Lake architecture includes integrated Intel Graphics at 300 MHz base frequency.
Suits High-Thread Workloads And DDR5 6400 Memory
The 8 performance plus 12 efficient cores handle multitasking, content creation and gaming. Dual-channel DDR5 6400 MT/s support scales to 256 GB with ECC. PCIe 5.0 and 4.0 provide 24 lanes in multiple configurations. Buyers needing lower power draw or an older socket should consider other models.
125W Base Power With 250W Max Turbo Power
Thermal design power is 125W and maximum turbo power reaches 250W. A cooling solution is not included in the box. The processor supports Intel Gaussian & Neural Accelerator 3.5 and Thread Director for workload scheduling. This power envelope decides whether your cooler and power supply can sustain peak performance.
Highlights
- Turbo speeds up to 5.5 GHz for responsive single-thread performance
- 20 cores split into 8 performance and 12 efficient cores handle heavy multitasking
- 30 MB L3 plus 36 MB L2 cache keep data close to the cores
- DDR5 6400 MT/s dual-channel support feeds memory bandwidth to demanding workloads
- 125 W base power with 250 W max turbo fits standard desktop cooling solutions
Specifications
| Brand | Intel |
|---|---|
| Processors Type | Desktop |
| Series | Core Ultra 7 (Series 2) |
| Name | Core Ultra 7 265K |
| Model | BX80768265K |
| CPU Socket Type | LGA 1851 |
| Core Name | Arrow Lake |
| # of Cores | 20-Core (8P+12E) |
| # of Threads | 20-Threads |
| Operating Frequency | Performance-core Base Frequency: 3.9 GHz Efficient-core Base Frequency: 3.3 GHz |
| Max Turbo Frequency | Intel Turbo Boost Max Technology 3.0 Frequency: Up to 5.5 GHz P-core Max Turbo Frequency: Up to 5.4 GHz E-core Max Turbo Frequency: Up to 4.6 GHz |
| L2 Cache | 36MB |
| L3 Cache | 30MB |
| Manufacturing Tech | 3nm (TSMC N3B) |
| Instruction Set | 64-Bit |
| Memory Types | Up to DDR5 6400 MT/s |
| Memory Channel | 2 |
| Max Memory Size | 256 GB |
| ECC Memory | Supported |
| Integrated Graphics | Intel Graphics |
| Graphics Base Frequency | 300 MHz |
| Scalability | 1S Only |
| PCI Express Revision | 5.0 / 4.0 |
| PCI Express Configurations | Up to 1x16+2x4, 2x8+2x4, 1x8+4x4 |
| Max Number of PCI Express Lanes | 24 |
| Thermal Design Power | 125W |
| Max Turbo Power | 250W |
| Cooling Device | Cooling device not included - Processor Only |
| Advanced Technologies | Intel Gaussian & Neural Accelerator: 3.5 Intel Thread Director: Yes Intel Speed Shift Technology: Yes Intel Turbo Boost Max Technology 3.0: Yes Intel Turbo Boost Technology: 2.0 Intel Hyper-Threading Technology: No Intel 64: Yes Instruction Set: 64-bit Instruction Set Extensions: Intel SSE4.1, Intel SSE4.2, Intel AVX2 Idle States: Yes Enhanced Intel SpeedStep Technology: Yes Thermal Monitoring Technologies: Yes Intel Volume Management Device (VMD): Yes |
| Security & Reliability | Intel vPro Eligibility: Intel vPro Enterprise Intel Threat Detection Technology (TDT): Yes Intel Active Management Technology (AMT): Yes Intel Standard Manageability (ISM): Yes Intel Remote Platform Erase (RPE): Yes Intel One-Click Recovery: Yes Intel Secure Key: Yes Intel Control-Flow Enforcement Technology: Yes Intel Total Memory Encryption - Multi Key: Yes Intel AES New Instructions: Yes Intel Trusted Execution Technology: Yes Execute Disable Bit: Yes Intel OS Guard: Yes Intel Boot Guard: Yes Mode-based Execute Control (MBEC): Yes Intel Stable IT Platform Program (SIPP): Yes Intel |
| Shipping weight | 0.09 kg |
| Package size | 121 × 102 × 44 mm |
Questions about this item
What socket and cooler clearance does the LGA 1851 Core Ultra 7 265K require?
The processor fits the LGA 1851 socket with a 125 W base power and 250 W max turbo power, so choose a cooler rated for at least 250 W and verify motherboard clearance around the socket.
Which BIOS step is often missed when installing the Arrow Lake 20-core CPU on a new motherboard?
Update the motherboard BIOS to the latest version before seating the processor; without it the system may not post or may run at reduced frequencies.
When should the thermal interface material be renewed on this 125 W desktop processor?
Replace the paste whenever the cooler is removed or if temperatures climb under sustained 250 W turbo loads; use a thin, even layer of quality compound.
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